Denso is the world's leading provider of high quality automotive merchandises which are engineered from the modernized facilities and equipments. Denso's proficiencies with their products are better than rivals as they initially built them along with their strict and valued standards.

Denso Platinum Twin Tip Spark Plugs features revolutionary twin tip design that provides better ignitability for a more powerful and fuel-efficient combustion yielding better engine performance in terms of power and fuel economy.

AC DELCO SPARK PLUG, SOLD INDIVIDUALLY -- Constructed from top quality materials to help the engine run clean and longer; Features a copper-core center electrode for improved heat transfer to the tip; Hot-tip insulators heats fast and fires hot to promote longer electrode life for miles of dependable performance; Nickel-chrome alloy sheathing on the ground and center electrodes offers maximum resistance against wear from spark erosion and the corrosive environment of the combustion chamber; Engineered to high standards and tested under extreme conditions to exceed OE specifications; Direct replacement part for OE number 88901019; With 100,000 mile AC Delco limited warranty.

Pulstar Pulse Spark Plug contains integrated electrical capacitor that focuses on the energy of the plug. Its electrical energy delivers the fuel mixture far beyond the typical conventional spark plugs and produces not only better fuel efficiency, but also increased torque and horsepower.

"1 out of 4 will miss at low speed while driving. I had to order an extra to replace a bad one that would misfire at low speeds. Pulstar s manufacturing quality control should do a better job of checking out going product."posted by: Bruce on July 21, 2014

For a fuller, hotter spark that improves throttle response, gas mileage and high RPM power, owners choose Accel’s patented U-Groove spark plugs. Made with purified Alumina insulators to prevent arcing and utilizing machine-rolled threads to protect the heads, U-Groove spark plugs have been an enthusiast’s favorite for many years. Accel has over four decades of designing and manufacturing race-winning fuel and ignition systems.